1 files changed, 43 insertions, 0 deletions
diff --git a/tests/dll/visibility.nim b/tests/dll/visibility.nim
new file mode 100644
index 000000000..ec15dad29
--- /dev/null
+++ b/tests/dll/visibility.nim
@@ -0,0 +1,43 @@
+discard """
+  output: ""
+"""
+
+const LibName {.used.} =
+  when defined(windows):
+    "visibility.dll"
+  elif defined(macosx):
+    "libvisibility.dylib"
+  else:
+    "libvisibility.so"
+
+when compileOption("app", "lib"):
+  var
+    bar {.exportc.}: int
+    thr {.exportc, threadvar.}: int
+  proc foo() {.exportc.} = discard
+
+  var
+    exported {.exportc, dynlib.}: int
+    exported_thr {.exportc, threadvar, dynlib.}: int
+  proc exported_func() {.exportc, dynlib.} = discard
+elif isMainModule:
+  import dynlib
+
+  let handle = loadLib(LibName)
+
+  template check(sym: untyped) =
+    const s = astToStr(sym)
+    if handle.symAddr(s) != nil:
+      echo s, " is exported"
+  template checkE(sym: untyped) =
+    const s = astToStr(sym)
+    if handle.symAddr(s) == nil:
+      echo s, " is not exported"
+
+  check foo
+  check bar
+  check thr
+
+  checkE exported
+  checkE exported_thr
+  checkE exported_func